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Hyperspectral image (HSI) classification presents unique challenges due to its high spectral dimensionality and limited labeled data. Traditional deep learning models often suffer from overfitting and high computational costs.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Prachet Dev Singh , Shyamsundar Paramasivam , Sneha Barman , Mainak Singha , Ankit Jha , Girish Mishra , Biplab Banerjee

In recent years, a large amount of multi-disciplinary research has been conducted on sparse models and their applications. In statistics and machine learning, the sparsity principle is used to perform model selection---that is,…

Computer Vision and Pattern Recognition · Computer Science 2014-12-09 Julien Mairal , Francis Bach , Jean Ponce

Hyperspectral imaging (HSI) has a wide range of applications from environmental monitoring to biotechnology. Current snapshot HSI techniques all require a trade-off between spatial and spectral resolution and are thus unable to achieve high…

Optics · Physics 2023-01-11 Yingwen Zhang , Duncan England , Benjamin Sussman

Recent studies try to use hyperspectral imaging (HSI) to detect foreign matters in products because it enables to visualize the invisible wavelengths including ultraviolet and infrared. Considering the enormous image channels of the HSI,…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Dongeon Kim , YeongHyeon Park

We propose a novel hyperspectral (HS) anomaly detection method that is robust to various types of noise. Most existing HS anomaly detection methods are designed without explicit consideration of noise or are based on the assumption of…

Image and Video Processing · Electrical Eng. & Systems 2026-02-04 Koyo Sato , Shunsuke Ono

Depth completion, the technique of estimating a dense depth image from sparse depth measurements, has a variety of applications in robotics and autonomous driving. However, depth completion faces 3 main challenges: the irregularly spaced…

Computer Vision and Pattern Recognition · Computer Science 2018-07-04 Fangchang Ma , Guilherme Venturelli Cavalheiro , Sertac Karaman

High-resolution hyperspectral images (HSIs) contain the response of each pixel in different spectral bands, which can be used to effectively distinguish various objects in complex scenes. While HSI cameras have become low cost, algorithms…

Computer Vision and Pattern Recognition · Computer Science 2021-07-21 Yuxing Huang , Shaodi You , Ying Fu , Qiu Shen

Hyperspectral images (HSI) have become popular for analysing remotely sensed images in multiple domain like agriculture, medical. However, existing models struggle with complex relationships and characteristics of spectral-spatial data due…

Computer Vision and Pattern Recognition · Computer Science 2023-12-21 Neetu Sigger , Tuan Thanh Nguyen , Gianluca Tozzi , Quoc-Tuan Vien , Sinh Van Nguyen

We introduce a new method for sparse principal component analysis, based on the aggregation of eigenvector information from carefully-selected axis-aligned random projections of the sample covariance matrix. Unlike most alternative…

Methodology · Statistics 2019-05-07 Milana Gataric , Tengyao Wang , Richard J. Samworth

Hyperspectral imaging has proven its efficiency for target detection applications but the acquisition mode and the data rate are major issues when dealing with real-time detection applications. It can be useful to use snapshot spectral…

This paper focuses on hyperspectral image (HSI) super-resolution that aims to fuse a low-spatial-resolution HSI and a high-spatial-resolution multispectral image to form a high-spatial-resolution HSI (HR-HSI). Existing deep learning-based…

Image and Video Processing · Electrical Eng. & Systems 2023-01-05 Jianjun Liu , Zebin Wu , Liang Xiao , Xiao-Jun Wu

Single hyperspectral image super-resolution (single-HSI-SR) aims to improve the resolution of a single input low-resolution HSI. Due to the bottleneck of data scarcity, the development of single-HSI-SR lags far behind that of RGB natural…

Image and Video Processing · Electrical Eng. & Systems 2024-12-31 Xi Su , Xiangfei Shen , Mingyang Wan , Jing Nie , Lihui Chen , Haijun Liu , Xichuan Zhou

Visual autoregressive modeling, based on the next-scale prediction paradigm, exhibits notable advantages in image quality and model scalability over traditional autoregressive and diffusion models. It generates images by progressively…

Computer Vision and Pattern Recognition · Computer Science 2025-07-29 Zhuokun Chen , Jugang Fan , Zhuowei Yu , Bohan Zhuang , Mingkui Tan

An appealing requirement from the well-known diffraction tomography (DT) exists for success reconstruction from few-view and limited-angle data. Inspired by the well-known compressive sensing (CS), the accurate super-resolution…

Computational Engineering, Finance, and Science · Computer Science 2009-04-20 Lianlin Li , Wenji Zhang , Fang Li

Sparse non-Gaussian component analysis (SNGCA) is an unsupervised method of extracting a linear structure from a high dimensional data based on estimating a low-dimensional non-Gaussian data component. In this paper we discuss a new…

Statistics Theory · Mathematics 2012-01-17 Elmar Diederichs , Anatoli Juditsky , Arkadi Nemirovski , Vladimir Spokoiny

In this paper, we propose a novel nonconvex approach to robust principal component analysis for HSI denoising, which focuses on simultaneously developing more accurate approximations to both rank and column-wise sparsity for the low-rank…

Image and Video Processing · Electrical Eng. & Systems 2022-12-07 Chong Peng , Yang Liu , Yongyong Chen , Xinxin Wu , Andrew Cheng , Zhao Kang , Chenglizhao Chen , Qiang Cheng

Our objective is to efficiently design a robust projection matrix $\Phi$ for the Compressive Sensing (CS) systems when applied to the signals that are not exactly sparse. The optimal projection matrix is obtained by mainly minimizing the…

Machine Learning · Computer Science 2017-09-07 Tao Hong , Zhihui Zhu

Sparse sensor placement, with various design objectives, has successfully been employed in diverse application areas, particularly for enhanced parameter estimation and receiver performance. The sparse array design criteria are generally…

Signal Processing · Electrical Eng. & Systems 2021-01-19 Syed Ali Hamza

Hyperspectral target detection is good at finding dim and small objects based on spectral characteristics. However, existing representation-based methods are hindered by the problem of the unknown background dictionary and insufficient…

Computer Vision and Pattern Recognition · Computer Science 2023-06-02 Dunbin Shen , Xiaorui Ma , Wenfeng Kong , Jiacheng Tian , Hongyu Wang

Hyperspectral Image (HSI) classification is an important issue in remote sensing field with extensive applications in earth science. In recent years, a large number of deep learning-based HSI classification methods have been proposed.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Ning Chen , Jun Yue , Leyuan Fang , Shaobo Xia
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